Cracked ceramic floor tiles, from ladder?

[Daveyboy]

Hi Pete, not a nice situation to be in....it's not clear from yr post where the ply joints meet in relation to the run of the joists and extra noggins you put in...If the joints are straddling a joist and the cracking is running the same direction as the joists, then it could well be too much movement in the joist(s) or settlement of the property. If the joints are at right angles to the joists, then it could still be joist movement if the crack line is also at right angles.

I've never had a problem with the ply swelling up/shrinking but that could happen if the ply was damp/too dry when laid. I had an ensuite (above a garage) suffer a bit of settlement and it split a 3m row of tiles straight down the middle of every tile in that row! The rest of the room was undamaged.

I also always check to see how much 'bounce' a floor has before agreeing to tile it, particularly in older properties where the joists are likely to have come loose in their wall mounts or rotted slightly. If your floor had too much bounce, then the moving of heavy objects over/on it would increase the risk of cracking.

Good luck sorting it out....David

 

[crazysteve123]

Be careful of dust if you have to remove the tiles and grout, it can fill a house trust me i know, especially if you need to use a grinder seal the door off if you can and take your time its very easy to chip the other tiles..

 

[Highlander]

One possible problem is that alot of B&Q tiles are crap and soft and the stepladder could have been close to the edge of the tile. Otherwise could be deflection.

Highlander